| 摘要 |
PURPOSE:To cope with a turnabout at a muddy road or a narrow place, parking and stoppage at a slope or the like, damage to a brake hose, etc., as well as to make stopping and running by other wheels performable, by stopping feed oil to a breakage wheel part with a hydraulic selector at a time when racing occurs and so on. CONSTITUTION:A hydraulic selector is connected to a master cylinder 3, while pipeline ports 5.1-5.4 and wheel cylinders 7.1-7.4 are connected together through feed oil pipes 2.1-2.4. Likewise, a hydraulic selector valve 6.1 is installed in the inner side of a hydraulic selector box 5 in connection to a hydraulic selector knob 6. Upon this, this hydraulic knob 6 is set to a racing wheel, thereby coping with racing at a muddy road and also racing at a turnabout at a narrow road, and also it is set to the pipeline port 5.5 at the side of the master cylinder 3 whereby all-wheel braking at a slope is made possible to be done. In addition, when each hydraulic system of these wheel cylinders 7.1-7.4 for brake use and these feed oil pipes 2.1-2.4 gets out of order, setting to the wheel takes place whereby an outflow of oil is topped, thus running can be continued with other wheels.
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